Extension rod clamp with good applicability

The utility model relates to an extension rod clamp with good applicability. The extension rod clamp comprises an extension rod, a positioning seat, a connecting piece and a locking screw rod; the connecting piece is used for fixing the top of the extension rod to the electrode so as to maintain the position of the extension rod relative to the electrode; a square base is arranged at the bottom of the extension rod, and a square groove matched with the base and a threaded hole matched with the locking screw rod are formed in the positioning seat; the base is inserted into the square groove, and the locking screw is in threaded connection with the positioning seat, so that the locking screw can abut against the base when being tightened, and the position of the extension rod relative to the positioning seat can be kept. Therefore, the problem that the machining cost of mechanical parts is increased due to excessive waste of copper materials and graphite in the prior art is solved. 本实用新型涉及一种适用性好的伸长杆夹具。伸长杆夹具包括伸长